SOA

Soa or SOA can stand for:__NOTOC__

* Safe operating area, conditions for a semiconductor to work reliable
* Secondary Organic Aerosol, a kind of atmospheric aerosols formed from reactions of organic compounds with oxidants.
* Semiconductor optical amplifier, an optical amplifier which use a semiconductor to provide the gain medium
* State of the art, the highest level of development
* Stimulus Onset Asynchrony, the time interval between the onset of a first stimulus and the onset of a second stimulus
* Super Output Area, a geographical unit in the United Kingdom used mainly for statistical analysis

ociety and Institutes

* School of the Americas, a US Army training facility subsequently officially known as the Western Hemisphere Institute for Security Cooperation
* School of the Arts, a common name for fine arts schools
* Society of Ancients, an international society based in the UK

in Information Technology

* Search oriented architecture, the use of search engine technology as the main integration component in an information system
* Service-oriented architecture, a computer systems architectural style for creating and using business processes, packaged as services
* Start of Authority, a record type in the Domain Name System

in accounting and business

* Sarbanes-Oxley Act, officially titled the Public Company Accounting Reform and Investor Protection Act of 2002
* Society of Actuaries, one of the two main professional societies of actuaries in the United States
* Statement of Affairs, an enumeration of financial situation prepared typically by a company or individual considering insolvency or bankruptcy

in entertainment

* "Sons of Anarchy", a 2008 American television program
* "Siege of Avalon", a 2000 computer role-playing game
* "Skies of Arcadia", a console game for the Sega Dreamcast and Nintendo Gamecube
* Soldiers of Allah, an Islamic rap group
* State of Alert, a hardcore punk group
* Sons of Azrael, a death metal group